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Features:
Made of high quality ABS material, it is durable, wear-resistant and can be used for a long time.
With data display screen, accurate and clear reading, sensitive response, easy to use.
The measuring range is wide, with gearshift device, low power consumption and long service life.
Professional high-precision measurement and testing tools, with maximum and minimum reading retention function, automatic measurement function.
The method is simple and suitable for schools, workplaces and various visible light environments.

Specification:
Condition: 100% Brand New
Material: ABS
Power Supply: 2 x AAA Battery (Battery Not Included)
Weight: Approx. 157g / 5.5oz
Size: Approx. 60x160x25mm / 2.4x6.3x1.0in

Package List:
1 x Light Meter (Battery Not Included)
Illuminometer measurement principle:
Photovoltaic cells are optoelectronic components that convert light energy directly into electrical energy. When the light hits the surface of the selenium photo cell, the incident light passes through the metal thin film 4 to reach the interface of the semiconductor selenium layer 2 and the metal thin film 4, and a photoelectric effect is generated at the interface. The magnitude of the potential difference is proportional to the illuminance on the light-receiving surface of the photocell. At this time, if an external circuit is connected, a current will pass, and the current value is indicated from the micro-ampere meter with the Lx scale. The magnitude of the photocurrent depends on the intensity of the incident light and the resistance in the loop. The illuminance meter has a shifting device, so it is possible to measure high illuminance or low illuminance.
Spot Wholesale Auto Range Handheld Digital Illuminance Meter Photometer Brightness Meter Photometer HS1010
The steps of using the illuminometer:
-Turn on the power.
-Open the photodetector cover and place the photodetector horizontally in the measurement position.
-Select the appropriate measuring gear.
If only "1" is displayed at the left end of the display, it means that the illuminance is excessive. You need to press the range button (8 button) to adjust the measurement multiple.
-The illuminometer starts working and displays the illuminance value on the display.
-The display data on the display constantly changes. When the display data is stable, press the HOLD button (8 button) to lock the data.